Finding the Fourth Proportional to 1,704.69, 2,558.25 and 1,315.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,704.69 : 2,558.25 = 1,315.08 : x
2. Step 2: Convert to fraction form
   1,704.69/2,558.25 = 1,315.08/x
3. Step 3: Cross multiply
   1,704.69x = 2,558.25 × 1,315.08
4. Step 4: Simplify right side
   1,704.69x = 3,364,303.41
5. Step 5: Solve for x
   x = 3,364,303.41/1,704.69
6. Step 6: Final answer
   x = 1,973.56